Had my 2.0tfsi Cupra mapped by Jason last Friday.
Completely painless experience, after checking car out, original map was read and downloaded, 15mins later, new map uploaded.
Now a lot of people say things like 'transformed' 'different car' etc and you think Yeah ok!
Took the car for a test drive and it was like someone had put an extra turbo on! Pick up improved immensely, first 3 gears gone in a blink! Smooth as well.
I came back smiling like a loon.
I had a performance remap, and expected lower mpg, but I still got 34mpg from Leeds to Brighouse today, which is better than before.
All in all I couldn't ask for more, and at a 3rd of the price of Revo, APR etc.
Jason's a real nice fella to boot.
My advice, just do it!